In industry and construction, products such as sheet metal are often used, which are metal sheets made in the shape of a rectangle. They can be of different lengths, widths and thicknesses. This rolled product can also include steel coils. Unlike long bars, this steel is usually produced by cold rolling, so it has a more uniform thickness and a high surface finish.
Varieties of sheet metal
There are several classifications of these materials. For example, according to their purpose, they can be divided into sheet products of general and special use. The latter group usually includes electrical steel sheets used in various electrical mechanisms directly in magnetic circuits. They can also be suitable for creating separate oscillator elements operating at higher frequencies.
These products are also divided according to the type of rolled products: cold-rolled and hot-rolled. According to the type of coating, sheet steel is divided into tinned, cadmium and galvanized. Plus, these metal sheets can be thin-sheet (the thickness of the sheets is less than four millimeters) and thick-plate (the thickness varies from four to sixty millimeters).
Features of the manufacture and use of sheet metal
These products are most often used to create various parts and objects from them, for example, vehicle housings, containers, equipment, metal structures, and so on by cutting and stamping them. Corrugated sheet metal can be a good building material for high-quality roofing or the development of special-purpose parts.
Steel sheets are produced using quality steel with low to medium carbon content. Materials of different grades may be suitable, including St 0, 1, 2, and so on. They are also manufactured from alloy steel. It is for this reason that the release of these products is put on stream.
Sheet metal types
Sheet metal is one of the most practical and demanded materials, widely used in all industrial areas. It is impossible to imagine construction, trade, car manufacturing and instrument making, food and chemical industries, design and advertising business, medicine and heavy industry without sheet metal.
Sheet metal is usually divided into ferrous metal and non-ferrous:
Ferrous metals include all types of sheet steel, alloyed steel grades, different in thickness and shape. The category of non-ferrous metal includes: sheet copper, as well as alloys with brass and bronze. A separate category is represented by rolled aluminum, which includes aluminum alloys in its group. Modern technologists also make it possible to obtain multilayer bimetallic sheets.
Rolling by compression and pressure of a metal billet while rolling it between rotating rolls. Sheet metal production technologies include the following types of rolling:
hot method, accompanied by heat treatment, during which the metal temperature is higher than the recrystallization temperature; cold method, which is characterized by the temperature indicators of the metal below the recrystallization temperature.
The choice of rolling method determines the thickness of the finished product: cold-rolled blanks are processed for thin-sheet metals, hot-rolled is used for the production of thin and thick plates. At the exit, the sheet can have a cut or uncut edge. ational properties and quality surface. it is used for practical purposes, and if double-sided embossing is used for decorative purposes.
For its production, steel is used that corresponds to GOST 380-88, from which a high-precision sheet of grade A is made, and a sheet of normal accuracy of grade B. Finished products are sold in the form of rolls and sheets.
Corrugated sheet is often used to create anti-slip flooring. They are used to cover stair treads, as well as floorings in high humidity conditions. In addition, the sheets are used both as a facing material and to create ventilation grilles.
Galvanized sheet is rolled metal, on one or both sides of which a layer of anti-corrosion zinc is applied. It is produced in accordance with GOST 14819-80 standards, according to which its thickness can range from 0.5 to 2.5 mm. They are often used in roofing, food processing and cladding applications.
A corrugated sheet is a galvanized corrugated sheet with a wavy shape. It is produced in accordance with GOST 14819-80 with an allowable thickness of 0.4 to 0.75 mm. It is most commonly used to create interior partitions, wall cladding and as a component for sandwich panels.
